I have an HVAC system that has a condenser fan motor that has gone bad. The motor is no longer available. What considerations do I need to make in order to replace the motor with a different motor?
For example, if the voltage is the same, can I replace the motor with one that has similar speed? Would it just require a matching capacitor?
Additionally, can it be switched over to brushless?
Best Answer
You will need to match the RPM and the HP rating will need to match or exceed the original motor. Don't mess with "close enough" RPMs. Higher, and you will increase HP of motor needed by some unknown amount and potentially burn out motor. Or you will push the fan blade to RPMs it wasn't designed for and it could fail catastrophically. You will need a capacitor appropriate for the motor. You can use a brushless motor.